In-house recruitment vs agency vs a verified candidate pool
There are, broadly, three ways an employer sources internationally-qualified doctors: build the capability in-house, commission a recruitment agency, or draw introductions from an existing verified candidate pool. None is universally best — the right choice depends on your hiring volume, specialty mix, and how much sourcing risk (ethical recruitment compliance, verification depth) you want to own directly versus delegate.
Quick answer
- In-house
- Best at sustained, high volume — highest fixed overhead, most direct control over sourcing and compliance.
- Agency
- Fastest reach for occasional or specialist hires — per-placement/retained fee, employer still owns Code of Practice compliance.
- Verified pool
- Access to already-opted-in, pre-screened candidates for a per-introduction fee — pool depth in your exact specialty/geography is the variable to check.
- Not mutually exclusive
- Many employers combine an agency or in-house function for volume with a verified pool for hard-to-source specialties.
Side by side
| Route | Cost pattern | Speed | Who owns compliance risk |
|---|---|---|---|
| In-house function | High fixed cost (staff, systems), low marginal cost per hire at volume | Slow to stand up; fast once running | Employer, directly |
| Recruitment agency | Per-placement or retained fee, employer-paid | Fast for reach; variable for niche specialties | Employer, via oversight of the agency’s sourcing |
| Verified candidate pool | Per-introduction or subscription fee, employer-paid | Fast per introduction, bounded by pool depth | Shared — employer still confirms verification claims itself |
Questions worth asking before choosing
- What is our actual, sustained hiring volume in this specialty and geography — does it justify in-house overhead?
- For an agency: is it on the relevant Ethical Recruiters List, and can it show its sourcing evidence per candidate?
- For a pool: what is the real, current number of candidates who are both verified and consented to introduction — not just registered? (See the credential-verified guide for what to ask.)
- Are we combining routes deliberately, or defaulting to whichever a single vendor pitched us first?
As one honest data point on pool depth: as of 2026-08-31, GeraClinic’s own pool has 607+ registered profiles, of which 41 are both credential-verified and consented to introduction today. We publish this number, not a larger, rounder one, because the number that matters to a hiring decision is the verified-and-consented count, not the raw signup count.
Frequently asked questions
When does building an in-house international-recruitment function make sense?
When hiring volume is high and sustained enough to justify dedicated staff and infrastructure — large NHS trusts with continuous overseas pipelines are the clearest example. Below that volume, the fixed overhead (specialist staff, compliance expertise, direct sourcing relationships) is hard to justify against occasional hires.
What is the main trade-off with a recruitment agency?
Speed and reach for a per-placement or retained fee, with variable transparency into how candidates were sourced — which matters directly for Code of Practice compliance, since the employer remains responsible even when an agency does the sourcing. Confirm any agency you use is on the relevant Ethical Recruiters List and ask directly how it sources from, and screens out active recruitment into, red-list countries.
What is different about a verified candidate pool?
It inverts the sourcing model: rather than commissioning a search, an employer accesses candidates who have already opted in and been through a stated verification process, and pays for the introduction rather than a full placement search. This tends to be faster and cheaper per introduction, but the pool size and depth in your specific specialty/geography is the real variable to interrogate — ask for actual current numbers, not a marketing claim.
Can these be combined?
Yes, and many employers do — using an in-house function or agency for volume hiring while using a verified pool to fill specific, hard-to-source specialties or to pilot a new source geography before committing to a larger agency contract.
Sources & further reading
These are the primary, official sources for everything on this page. Where figures appear, confirm the current value at the source before relying on it.
- NHS Employers — Code of Practice for International Recruitment
The current (March 2025) UK Code of Practice text that implements the WHO Global Code of Practice for health and social care employers in England.
- NHS Employers — International Recruitment Toolkit
Practical guidance for NHS organisations recruiting overseas: ethical sourcing, pastoral support, onboarding.